erickson



.2Sheets-Sheet 1.

(No Model.)

B. ERIG'KSON. SOLE ROUNDING MACHINE.

Patented Mar. 1,1898.

\X/ITNESEESI (No-Model.) 2 ShetsSheet 2.

E. ERIG KSON. SOLE ROUNDING MACHINE.

N0. 599,693. Patented Mar. 1, 1898.

WITNEEEES. INVQNTUR. 3/- J A/W- dMJaW UNITED STATES PATENT OFFIC YEDWARD ERIOKSON, OF BOSTON, MASSAOHUSETTfl ASSlGNOR TO THE FLAGGMANUFACTURING COMPANY, OF SAME PLACE.

ZSOLE -ROU NDING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 599,693, dated March 1,1898.

Application filed March 2 5, 18 97.

To all whom it may concern:

Be it known that I, EDWARD ERICKSON, of Boston, in the county of Suffolkand State of Massachusetts, have invented certain new and usefulImprovements in Sole-Rounding Machines, of which the following is aspeci fication.

This invention relates to sole rounding or trimming machines of-thatclass known as the Julian, employing a rotary table, a fixed pattern orform, a knife-holder adapted to move back and forth on the table, acarrier on which said knife-holder is mounted, and

wan improved mechanism for starting and stopping the rotating table,while at the same time simplifying the same and reducing the number ofparts therein. v

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which? Figure 1 represents a top plan 'view ofthe, principal working parts of a sole-rounding machine embodying myinvention. Fig. 2 represents aperspeetive view-of parts of the startingand stopping mechanism. Fig. 3 represents a section on line 3 3 of Fig.2. Fig. 4: represents a section on line 4 4 of Fig. '1.

The same reference characters indicate the same parts in all thefigures.

Referring to the drawings, the letter a designates the rotating table,which is mounted to turn on a fixed column, at the top of which is thesole pattern or formupon which the untrimmed leather is placed to becut. (The column and pattern are not shown in the drawings.) Theknife-holder b is pivoted at b to man (1, actuated by a revolving crank,so op; erates the carrier 0 as to accelerate the speed of the knife whentraversing the long sides of the sole-pattern and to retard the samewhen rounding the ends of said pattern. As

Serial No. 629,146. (No model.)

a meansfor holding the knife up to the carrier I'provide mechanismcomprising a segmental gear-head b ,a pinion e,meshing therewith andfixed to a vertical arbor e, and a spiral spring f, secured at one endto the arbor e and at the other end to the carrier 0. The said arbor 6has a lower bearing in the-carriere and an upper bearing in a plateg,which forms abridge over the spring. By this arrangement theknife-holder b is actuated in the direction of the arrow 00 in Fig.1, soas to hold the knife constantly up to the solepattern around which it ismoving, the spring f yielding to allow a backward displacement. of theholder as the knife reaches the protruding portions of the pattern andimmediately forcing the holder forward again as the knife reaches therecesses or depressions of said pattern. This construction dispenseswith all weights and their cumbrous attachments as commonly employed inmachines of this class and greatly simplifies the knifeactuating means.1

The table a is provided on its under side with gear-teeth, which meshwith the teeth of a pinion h, (shown in dotted outline in Fig. 1,) thesaid pinion being fixed to a drivingshaft t'. A driving-pulleyj, whichis loosely mounted on the shaft 2', has a clutch member adapted toengage a corresponding clutch member formed on a spider, which is fixedto the shaft 2', as described in Letters Patent No. 540,062, dated May28, 1895. The clutch members are normally held out of engagement bymeans of a spring, which tends to separate the spider and the pulley.For moving the pulley into contact with the spider a movable collar isemployed, which is loosely mounted on the shaft between the hub of the,

pulley and a fixed abutment or hearing m, in

which the shaft is journaled. A strut 7c is interposed between the saidcollar and abutment, its ends fitting in sockets in the said twomembers, and is mounted diagonally, so that when the collar is is turnedin one direction the strut forces the collar against the hub of thepulley j and thereby moves the pulley, so as to ,engage the clutchmembers,

which are disengaged by turning the collar back in the other direction.Y

The collar k is connected by a yoke 70 with a gear-segment k looselymounted on the shaft 2', and the teeth of said segment mesh with thoseof another gear-segment n, fixed to a sleeve 11., which is mounted torock on a shaft 0. A collar 19, fixed to said shaft 0, is provided withmeans for engaging the sleeve 01, consisting of an arm Won the collar19, and two lugs n on the sleeve 72, (only one of said lugs beingshown,) so that the collar and sleeve may be turned together. The collaris further provided with an arm or handle 13. By depressing said handlethe operator may engage the clutch members of the pulley and the spideron the shaft 2', and thus cause said shaft and the table a to rotate.

Automatically-acting means are provided for releasing the clutch membersand arresting the shaft 1', the said means consisting of a brake-band q,surrounding the shaft, a link q, connecting one end of said band with anarm 13 on the collar 19, a standard 19 on said collar, a hooked arm 0',supported on said standard, a hook r on said arm, and an abutment at onthe table a. The arm 1" is pivoted at p to the standard 19 and isnormally held by a spring 8, connected with said arm and with a lug s011 the collar 1) in position to be engaged by the abutment a When saidabutment strikes against the hook r, it moves the collar 19 andthesleeve h in the direction indicated by the arrow w in Fig. 3, therebymoving the gear-segments and the collar is, so as to permit thedisengagement of the clutch members. At the same time the link q forcesthe brake-band q into, engagement with the driving-shaft iand arreststhe rotation of the same, the action of the brake being cushioned,ifdesired,by a spring or springs applied after the manner described in thepatent above referred to. Upon depressing the arm 1) to engage theclutch mechanism again and start the table a in rotation it is necessaryto disengage the hooked arm r from the abutment a and this isaccomplished by means of a handle or lever i, pivoted at 25' to the arm19' and provided with a beveled face 2, engaging a complementary beveledface 3, formed on a rear extension of the arm r. Be-

fore depressing the arm 29 the outer end of the handle 25 is depressed,thereby raising its inner end, as indicated by the arrow-z, Fig. 3, anddisplacing the rear end of the arm 1' in the direction of the arrow ,2"by the reaction of the beveled faces. The hook 7' is thus moved so as torelease the abutment (i and the arm .1) is then depressed to engage theclutch mechanism and start the table a in rotation. The clutch membersremain in engagement until the table has completed a rotation, when theabutment again strikes against the hook and releases the clutch. Thetable may of course be stopped by the operator at any desired point byraising the arm 1). The abutment a is bolted in a slot or,

The abutment a and the hooked arm 1' may be said to constitutecomplementary stop members.

I claim 1. In a sole-rounding machine, the combination with a rotarytable carrying a knifeholder and provided with gear-teeth, of a shaft, apinion on said shaft meshing with said gear-teeth, a clutch-pulleyloosely mounted on said shaft, members on said shaft adapted by theirpartial rotation to move said pulley longitudinally into engagement withthe shaft, and mechanism for automatically turning said members in aclutch-releasin g direction, consisting of a sleeve mounted on anauxiliary shaft and having gear-teeth which mesh with correspondinggear-teeth on one of the before-mentioned members, a collar mounted onsaid auxiliary shaft and adapted to turn said sleeve, a stop member onsaid collar, and a complementary stop member on the rotary table adaptedto engage the first-mentioned stop member and thereby rotate the saidcollar and sleeve.

2. In a sole-rounding machine, the combination with a rotary tablecarrying a knifeholder and provided with gear-teeth, of a shaft, apinion on said shaft meshing with said gear-teeth, a clutch-pulleyloosely mounted on said shaft and adapted to be moved longitudinallyinto or out of engagement with a complementary clutch member fixed tothe shaft, a clutch-operating mechanism including a collar mounted on anauxiliary shaft and having an arm or handle and connecting devicesbetween said collar and the clutchpulley whereby opposite movements ofthe collar are caused to connect and disconnect the clutch-pulley andthe clutch member on the shaft, a shaft-arresting mechanism connectedwith the collar and operated thereby, a pivoted arm carried by saidcollar and having a stop member, a stop member 011 the rotary tableadapted to engage the arm and thereby turn the collar in itsclutch-disconnecting direction, and means for disengaging said stopmembers, consisting of a lever pivoted to the before-mentioned arm orhandle and having a beveled face adapted to engage a correspondingbeveled face on the pivoted arm, whereby a movement of the lever on itspivot causes the pivoted arm to swing.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 19th day of March, A. D.1897.

EDiVARD ERIOKSON.

IVitnesses:

O. F. BROWN, G. H. P. FLAGG.

